Arduino Engineering Kit

Hello;

I have the Arduino engineering kit and its working really good.

The problem I have is with the ultrasonic sensor – the one I got in the kit has four pins (Vcc, gnd, trig and echo).
When I use the set up from the Arduino web page it only shows what to do when the ultrasonic sensor has the three pins.

When using the four pin sensor, and the instructions, it means the trig pin is not connected. Also the module cable goes from a four pin to three pin connector for the Arduino MKR motor carrier and it doesn’t show how the trig is activated with this setup.

Is there something I am missing or is there another way of setting up the ultrasonic sensor with the four pins.

Thanks for your help